Lost the notes I made while doing this build, so I'll just have to wing it. The only modification I made, was to put posts in holding up the platform canopy. The instructions for this model were excellent. Plus using the knowledge I gained from the Signal box build, things went fairly smoothly. The most difficult thing to do was cutting the 2mm board. I used a box cutting knife and it took a long time to cut accurately. I was very surprised how well the down pipes came out. I was very sceptical, and was going to change them, but now very happy with the results. The amazing thing is, how strong these paper, and cardboard buildings are. I personally clear coat the models after I have finished the build, I find that this helps hold the whole model together. Big thumbs up for this model.